Silas h



(No Model.)

S. H. RANDALL. LEATHER OREASING MACHINE.

No. 357,230 Patented Feb. 8, 1887.

FIGJZ.

N. PETERS. PhnlnLithagraphar. Washington, DC.

UNITED 1 STATES PATENT OFF CE.

sILAs H. RANDALL, or WYOMING, oHio.

LEATHER-CREASING MACHINE.

SPECIPICA'I'IONforming part of Letters Patent No. 357,230. datedFebruary 8, 1887.

Application filed October 18, 1686. Serial No. 216,498. (No model.)

ments in Leather-Oreasing Machines, of which the following is aspecification, reference being bad therein to the accompanying drawings.

, This invention relates to those leather-creasing machines whichincludean upper andlower train of rolls, between which the strap isrun; andmyimprovement consistsin journaling one of these trains in a swingingframe capable of being thrown back, so as to allow the most convenientaccess to the operative parts of the machine, Iusuallyjournal the uppertrain in this swinging frame, and operate the latter by a treadlemovement, as hereinafter more fully described.

. the machine, the cords that operate the swinging frame being omitted.Fig. 31s an'end elevation' of the machine. Fig. 4 is another endelevation, but showing the frame that supports the upper train of rollsswung back to permit access to the lower train. Fig. 5 is an enlargedend elevation of one'of the adjustable journalbearings. Fig. 6isahorizontal section of the box of said bearing.

A represents a bed plate or frame, having rigidly attached to itsopposite ends the vertical arins B B, supporting a rock-shaft, O.

c c are pins that rigidly connect theopposite ends of this shaft to apair of swinging arms, D D, each of which has a front extension, E, arear prolongation, E, and a pendent stop, F, the members E E beingperforated at e e to receive thongs or wire cords G G. These thongs orcords arefastened around the pins 0 c, and the front ends of said cordshave eyes or other devices, 9 g, for ready coupling to the appliancesthat retain the swinging frame 0 D I) in its normal or operativeposition. 4

In Fig. 1 a spring, H, is shown as being used for this purpose, while inFig. 3 the frame is closed by a weight, 71., one of the latter beingapplied to each of the cords G'G, the rear ends of thesecords beingfastened to a bar, I,

united by a coupling, '6, tea treadle, J; but in In the annexeddrawings, Figure 1 is a front similar to that just described, andconnect this bar to the floor by one or more springs of anysuitableconstruction. Eachswinging armhas a pair of lugs or ribs, k k,bearing against two sides of a sleeve, L, which sleeve is held incontact with said lugs by a screw, K, tapped into the stop F of saidarm. Journaled in these sleeves is the shaft or mandrel M of the uppertrain of rolls, N, which latter may have any approved form of creasers,as suggested at a; but as said flanges are old and well known, furtherdescription of them is unnecessary.

0 represents the shaft of the lower train of rolls, I, said shaft beingjournaled in sleeves L, similar to those previously described. Thislower pair of sleeves, L, is fitted in thevertical arms B B, each of thelatter being provided wit-h a pair of lugs or ribs, M", and setscrews R,to retain said sleeves in place. Furthermore, the front portions of saidvertical arms B B have horizontal screws S S and vertical screws T,which latter regulate the closure of the arms E E. The upper shaft, M,has a pinion, m, that gears with a pinion, o, of the lower shaft, crank,U.

V is a table that supports the machine. W is a stripper that preventsthe strap adhering to the rolls.

the latter being turned by a X is a gap in the swinging arms D D toadmit the sleeve of the upper shaft, and Y is .a similar gap in thevertical arms B B to admit thesleeve of the lower shaft.

In fittingup this machine, the bed-plate A is first secured to the tableor work-bench V, and'the rear ends of the wire cords or other flexibleconnections G G are fastened to the opposite extremities of the commonbar I. The cord G is then passed up through the hole e in the rearwardprolongation, E, of the swinging arm D, and said cord is fastened aroundthe pin a. The cord is now passed down through the hole e of the frontextension, E, of said arm, and the eye 9 of said cord is engaged withthe appropriate end of spring H, or with a suitable weight. The othercord, G, is then applied to the opposite arm, D, in a similar manner,thereby causing the arms D D to be closed by the stress of spring H, thedegree of closure being regulated by properly adjusting the versomecases it may be preferred to attach the front ends of the cords G G to acommon bar,

tical screws '1.

The ordinary opening of these arms, for the purpose of admitting a traceor other strap, is regulated by the horizontal screws S, which can beset so as to cause their inner ends to come in contact with the stop hof said arms. These adjustments having been effected, the operatordepresses the treadle J, thereby raising the front ends of arms D Duntil their stops F come in contact with the points of screws S, whichact elevates the upper train of rolls, N, a sufficient distance topermit the ready insertion of the strap in the machine. Treadle J isthen liberated, thus leaving the spring H free to pull down the frontend of the arms as far as the screws '1 will permit. The strap is thenrun through the machine in the usual manner, the surface of the leatherbeing creased by the circumferential ereasers n of the rolls N. I

If it should be desired to inspect, change, or repair either train ofrolls, the cords G G are first detached from the spring H, and theswinging frame G D D is thrown'baek to the position seen in Fig. 4, thusaffording the most convenient access to all parts of the machine.

Any wear, either of the shafts or the sleeves within which they arejournaled, can be readily taken up by slackening the proper set screw Kor It and then shifting the sleeve, after which act said screw is againtightened. It is evident the slackening of these screws permits thebodily removal of the shafts M O at the appropriate gaps X Y, andwithout detaching any other part of the machine. Relerenee to Fig. 5shows that the bearing r for the sleeve L is about vertically under thecen' ter of the same, while the other bearing, 7', is horizontally inline with said center. It will also be seen that the set-screw R isapplied to plied to the lower instead of the upper train of rolls, andmay be cast in one piece with a longitudinal bar that would take theplace of the rock-shaft C.

I claim as my invention--- The combination, in a leatherereasingmachine, of two trains of rolls driven by suitable gearing, one of saidtrains being supported by and between two journal'boxes, each of whichis applied to one of a pair of rigidly-united stationary arms, while theother train is supported by and between twojournal-boxes, each of whichis borne by one of a pair of rigidlyunited arms hinged to thepreviously-mentioned stationary arms, all arranged to 0peratesubstantially as herein described.

In testimony whereof I affix my signature in presence of two witnesses.

SILAS H. RANDALL.

Witnesses:

JAMES H. LAYJIAN, SAML. S. CARPENTER.

